Unit 6 Vocabulary(History of Earth)

A trace of an ancient organism that has been preserved in rock.

• Fossil

• Law of Superposition

• Law of Original Horizontality

• Law of Fossils

Tags

NGSS.MS-LS4-1

States that sedimentary layers are laid down in horizontal layers and so if they are titled something has disturbed them

• Fossil

• Law of Superposition

• Law of Original Horizontality

• Law of Fossils

The top rock layer and its fossils is the youngest and the bottom is the oldest.

• Fossil

• Law of Superposition

• Law of Original Horizontality

• Law of Fossils

Tags

NGSS.MS-ESS1-4

An absolute method of dating using decay of radioactive materials

• radiometric dating

• absolute dating

• relative dating

Tags

NGSS.HS-PS1-8

A technique used to determine the an actual numerical age of a fossil or rock

• radiometric dating

• absolute dating

• relative dating

Dating rocks and fossils by comparing them and what layers they are in.

• radiometric dating

• absolute dating

• relative dating

Tags

NGSS.MS-ESS1-4

any feature that cuts across a rock or layer must be younger than the rock or layer it cuts across

• Law of Cross Cutting

  
  

• index fossil

  
  

• Unconformity

  
  

• geologic time scale

  
  

a fossil that is useful for dating because it is common but in a short time period.

• Law of Cross Cutting

  
  

• index fossil

  
  

• Unconformity

  
  

• geologic time scale

  
  

A break in the geologic record created when rock layers are eroded or when sediment is not deposited for a long period of time. (also called nonconformity)

• Law of Cross Cutting

  
  

• index fossil

  
  

• Unconformity

  
  

• geologic time scale

  
  

Tags

NGSS.MS-ESS1-4

A record of the geologic events and life forms in Earth's history.

• Law of Cross Cutting

  
  

• index fossil

  
  

• Unconformity

  
  

• geologic time scale

  
  

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2